| Summary: | Dojran Lake with its hydrological basin is a closed hydrologicalsystem with natural inflow of water to the lake, but no natural outflow. Rechargeof the lake is from direct surface and underground inflow. Within the period 1950-1960 the lake faced with extremely high water level that was not favorable for thedevelopment of fishing. It was built an artificial channel to regulate the water levelin the lake and control the water use at Greek side of the lake. In the period 1988-2000, the water level in the lake continuously was declining. Water leveldeclination caused ecological catastrophe for the flora and fauna in the lake andlake’s basin that was inconvenience for the basic economy in the region, tourismand fishing. The reasons for declining the water level in the lake are not clearlyidentified, and they are located in unfavorable hydrological conditions expressedthrough longer dried period or uncontrolled usage the water from the lake.In 2002, the Republic of Macedonia finished a project to build a system forbringing water from Gjavato wells near Vardar River with capacity of 1 m3/s. Thewater level in the lake has recently increased. In order to define the causes ofchanges in the lake requires detailed hydrological and meteorological analysis.This paper will present the results of hydrological and meteorological analysis onthe basis of historical data of measured water level, precipitation, and airtemperature from hydrometeorological station New Dojran for the period 1961-2008. Some comments on impact factors will be presented as well.
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